Find the equation of the axis of symmetry of the parabola.y = -4x2 - 16x - 11

A. x = -5
B. x = -2
C. x = 5
D. x = 2


Answer: B

Mathematics

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What will be an ideal response?

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Find the vertex.f(x) = 4x2 + 24x + 31

A. (3, 5) B. (5, 3) C. (-3, -5) D. (-5, -3)

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A. 3x2 - 9 B. 3x(x - 3) C. 3x - 3 D. 3x2 - 3

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